Loom for and method of weaving fabrics



Mar. 2 0), W23 1,448,830

c. A. COOK LOOM FOR AND METHOD OF WEA'VING FABRICS Filed May 22, 1920 5sheets-sheet 1 Zjwuentoz Clyafie A oo/=- k V W, flcrom s Mar. 2%, 1923.

C. A. COOK LOOM FOR AND METHOD OF WEAVING FABRICS Filed May 22, 1920 5sheets-sheet 2 Twas =5 3 2.5

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c. A. COOK LOOM FOR AND METHOD OF WEAVING FABRICS Filed May 22, 1920 sshets-sheet 5 z z Invezzior. CQJQA- COO/Y.-

by wm z% shutt e till Patented Mar 29, 1923.

GL'YIDE A. COOK, 035 ELOfihifiEURG, PWQEYLVAWIA.

' $00M FOR AND METHOD OF WEAVING Application filed May 222, was. Seriall lo. senate.

To aZZ whom it may concern:

Be it known that I, Cnron A. Coon, a citizen of the United States,residing at Bloomsburg, in the county of Columbia and State ofPennsylvania, have invented con tain new and useful Improvements inLooms for and Methods of Weaving Fabrics, of which the following is aspecification.

This invention relates to a loom construct- Y ed to weave superposedindependent fabric webs simultaneously.

I am aware that separate webs have been simultaneously woven on unitmachines but, in such cases, the machines, in mechanism, are theequivalent of two or more looms; or are designed for weaving a tube andthence splitting the tube longitudinally on opposite sides to producethe two separate fabric webs. However, in the case of splitting a tubethe edges are left unfinished which is especially disadvantageous,particularly in fine fabrics such as georgettes and the like.

The principal features of the novelt of this invention over the presentstate 0 the art are the provision in a single loom, of more than oneindependent shed, each shed having its own warp and served by severalshuttles alternately interchanging between the several sheds, wherebyseveral super posed fabric webs are produced which are interconnected byonly half as many filler threads as is the case in weaving on the usualbag or tube loom, and when these filler threads are severed twoindependent selvage edge fabric webs are the result;

The invention further provides the necessary mechanism for crossing theshuttles through the sheds to obtain the above result, and, in addition,is equipped with protector mechanism which prevents a smash due to thenon-arrival of any shuttle.

In the drawings:

Fi re 1 is a front view showing the boxes, lay and attendant mechanism,parts 27 to 32 having been omitted for the sake of clearness. H

Fig. 2 is a plan view of the shuttle race, and showing the slitterknives in position for severing the filler connecting the separate webs.

Fig. 3 is a diagrammaticlongitudinal section of the loom.

Fig. 4 is a perspective view of one-shuttle box and its protectivemechanism, bracket 29 being omitted for clearness of illustration,

. the evolution webs, through three successive double shed t0 Fig. 5 isa diagrammatic view showing the cycle of the shuttle.

lg. t"; is a diagrammatic view showing of the two independent fabricformations.

Fig. Tie an enlarged front elevation off the left hand shuttle box.

Fig. 8 is a top plan view thereof,

Fig, 9 is a, the shuttle box guide end with the picker just leaving thesame.

ig. 10 is a perspeceive view of the double picker.

In detail: is substantially the same as the usual earn loom, comprisingthe side frames 1 carrying the loom beams 2 and 3 on which the warp forthe independent sheds is wound. The

warp from beam 2 runs over the whip roll 75 4 while the warp from theloom beam 3 runs over the whip roll '5; and the warps then run under andover the rolls e and 7 respectively and pass through the heddles carriedby the harness 6' whereb independent superposed sheds and B are formed.A reed 7 common to both sheds and mounted by the lay 3 is carried 'bythe lay swords 9 for beating up the of the lay ,8 forms the filler, Thetopl shuttle race for the lower shed, while an independent member 10carried by the mounting for the reed '2 forms the shuttle race for theupper shed A, and cooperates with supplemental race ways or fillershelves so 10 to form a, substantially continuous sup port for theshuttle during travel.

In thus providing two sheds two superposed independent fabric webs maybe woven on a unit machine by crossing the shuttles to through the upperand lower sheds as will be hereinafter described in connection with theshuttle mechanism. However, after the webs are formed as indicated at Cand D they are taken-off the loom through the pairs mo and 12 andthrough a series over the respective sand and finally wound on the 19atthe frontot the loom.

01E rollers 11 of guide rollers, rollers 16 and 17 cloth rolls 18 and Ateach side of the loom is the usual we shuttle mechanism including thepicker mechanism which comprises the picker sticks 20- and 21 whichactuate the various picker gllocks or butts carried bythe shuttle boxesfragmentary rear elevation of The construction of the loom we the two soand F each of which has three inde- 11c pendent shuttle receivingcompartments as shown. These shuttle compartments move up and downthrough the usual motions of the loom as in the case of the ordinaryloom of the cam type. At the front of the lay are mounted the protectorrods 22 and 22 carrying protector arms 23, 24, 25 and 26 and daggers 23which operate in the usual manner to prevent a smash if any shuttlefails to properly arrive in its respective box.

it will be seen that with the foregoing arrangement oi protectormechanism full protection is guaranteed for the reason that when oneshuttle is in the box it operates its pair of protectors, while theother pair of protectors cannot be operated if its shuttle fails toreach its box; Whereas if only one protector was used for each boxprotection would be given only, in the event that both shuttles tail toreach their boxes, for if one shuttle reaches the box (regardless ofwhich box it is) theprotector rod is operated, and the lay is notstopped and a smash is the result.

As previously set out thereare two sheds A and B being the upper andlower shed r spectively and each shed being entirely independent of theother except for the fact that they are served. by thesaine reed and byinterchanging shuttles. in; weaving the usual tube it is customaryforthe shuttles to travel through the upper shed, back through the lowershed and again through the uppershed, thus producing an adequate fillerso that a tube is the result. In the present invention. however, theshuttles are crossed between the sheds so that the result, while a tube,15" nevertheless an upper and lowerweb connected by only half as manyvfiller threads at the side as is the case with the usual tube. This isaccomplished in the following manner: Referring to F1g. l the shuttlesare in the middle compartments of the movable shuttle boxes E and F withthe shuttle box on the right hand, namely F, in a position to deliverthe huttle from. its middle compartment through the lower shed while theshuttle box E on thejleft hand side is in a position to delivertheshuttle in its middle compartment through the upper shed. Theseshuttles are designated X and 1 (see Figures 1 and 5)'a'nd cross inopposite directions, Y going to the lower shelf of box E from right toleft through the lower shed B on the race of lay 8 and X crossing fromthe left to right through the top shed A on the top shuttle race 10 tothe upper shelf or compartment of box F, from which each shuttle returnson the next pick to the cpnter shelf or compartment of the respectrveboxes from which they were originally picked, then'the boxes changetheir positions, box F going up and box E going down when, again, theoperation of crossing the shuttles through the sheds is repeated, thistime shuttle Y crossing through the top shed A on the top shuttle race10 to the top shelf or compartment of box E while shuttle X crossesthrough the lower shed to the lower shelf or compartment of box F afterwhich each shuttle again is returned to the center shelf or compartmentof their respective shuttle boxes, the boxes then chang-. ing to theirfirst position, shuttle box 1* going down and shuttle box E goin up,thisoperation being continued repeated y during the weaving of the goods. Itis to be noted in this connection that each shuttle box consists ofthree shelves or shuttle receivlng compartments, the center shelf. orcompartment of each being for the purpose of changing the shuttles fromone piece of goods tothe other, while-the top shelf or compartment is toreceive and return the opposite shuttle by passing it through shed A. ofthe upper piece of goods and the lower shelf or compartment is toreceive and return the opposite shuttle by passing it through shed B ofthe lower piece oi goods. In this way the two webs are woven with onlyhalf as many filler threads connecting thetwo as would be the cam in abag or tube loom. Mounted on the la and carrying the top shuttle race 10are t -e U-shaped members 2? Figures 2 and et which have, at their bendthe knife blades 28 which are located in such a position as tube in linewith the filler threads-- connecting-the two webs of fabric so thatimmediately upon-the 'weaving of the fabric these filler. threadsconnecting" the two superposed "webs are severed thus male ing the twosuperposed webs entirely independent from eachother. This loop" is ofproper dimensions to penniti freedom of filling to bind the selvage ofthe goods together for a woven length, in practice, of

approximately one half inch so as not to waste any filling and then thetwo separate webs are separated by the knives 28 so that both webs maytravel their respective courses over their respective sand rollersystems. The sand roller take-ups are each driven in the usual manner,but by separate trains of gears, from the respective pick wheels which.in turn. are driven, as one, from a catch operated by the motion of thelay.

The U-shaped members 27 have their ends secured to brackets29 (seeFigure 2) slidable on the mounting members 30 carrying guide rods 31provided with springs 32 which permit the said shuttle'race 10 to bemoved by hand to the position indicated in dotted lines shown in Fig. 2so that the weaver may draw the shuttle race 10 out of the way whenworking on the goods. In order not to conceal other details, these parts28 to 32, inclusive, have b en eliminated in Fig. l, the location of theU-shaped members 27 only being indicated. For a similar reason the tillLaeaeso brackets 29 have been removed from the U- shaped members 27 inFig. 4.

The mounting members or guides 30 are pivoted to adjustable hinges 40secured to the forward end of the lay 8 and have slidable connectionwith the rods 41 which are pivoted on hinges 42 secured on the forwardend of the breast beam. In this manner the device is given freedom tomove back and forth withthe lay when the loom is running.

Accordingly the raceway 10 will have two independent motions. The onefor the purpose of permitting the weaver to work on the goods to put inends or ripping floats when he moves the raceway 10 back by hand,together with the rods 27 and brackets 29, sliding therein on the guides30;, which then remain stationary, together with the rods 4:1 and hinges42; The raceway 10 receives a second niowement in horizontal directionduring the operation of the loom when the raceway 10, together with therods :27, brackets 29, guides 30, rods 4:]. and hinges 4:0, 42,oscillate with the lay. The tiller boards 10 of the upper shuttle raceare secured by bolts 33 carrying springs 3d to the reed holding board,the said springs 34: maintain the filler boards 10 in proper positionbut per unit or" their being lifted, when necessary to release thebottom shuttle.

The shuttle boxes are constructed for right and left hand sides of theloom and are opened. at the back to accommodate a double picker 35having the body thereof vertically passaged to receive the poker stick,a roller 36 being fitted in the forward or striking end of the pickerand held by a steel pin suitably secured in place, the purpose of theroller 36 being to give the same leverage for striking both shuttles toprevent, as far as is possible, undue wear on the picker stick. Thepickerbody 35 carries two butt recesses 37 and 38 each having a rawhidebutt or picker block 37, 38- forced thereinto as indicated at 37 and 38'respectively for running in both levels of the shuttle box. The shuttlebox guide ends 40 are shaped to receive the picker body at such time asthe shuttle boxes are changing levels.

The double pickers 35 are easily removable so as to be substituted bysingle pickers to obviate the necessity of running both shuttlesconstantly should one warp run off before the other.

I claim:

1. In a double shed loom, a lay beam having a lower raceway for thelower shed, and an upper raceway independently mounted for the uppershed and slidable in its own plane.

2. In a double shed loom, a lay beam having a lower raceway for thelower shed, and an upper raceway independently mounted for the uppershed and slidable in its own plane, and supplemental raceways suspendedfrom said la beam and extendin be tween the shutte boxes and the ends ofsaid upper raceway.

3. In a double shed loom, a lay beain having a lower raceway for thelower shed, and an upper raceway for the upper shed independentlymounted and slidable in its own plane, and yieldable means forpern1itting reciprocation of said upper raceway intransverse directionof the lay beam.

at. In a double shed loom, lay beans haw ing a lower raceway for thelower shed, and an upper raceway for the upper shed, independentlymounted and slidahle in its own plane, yieldable means for permittingreciprocation of said upper raceway in transverse direction of the laybeam, and a pair of knife member's mounted the on tremities of the saidupper raceway adapted to sever the connecting threads at the selvageedge between the webs formed by said upper and lower sheds.

5. In a double shed loom, a lay beam haw ing a lower raceway for thelower shed, and a slidable upper raceway independently mounted for theupper shed, and supple".

mental raceways extending between the shuttle boxes and the ends of saidupper raccways and suspended from said lay beans.

6. In a double shed loom havin the sheds superposed with relation to eaeother, a pair oft shuttle boxes situated one on each side of the sheds,each of said shuttle boxes being provided with three superposed coinpartments, and means for positioning the middle compartment of oneshuttle box op posits the upper shed while simultaneously positioningthe middle compartment of the other shuttle box opposite the lower shedand for alternating said positions and a raceway for each shed, one ofsaid raceways being slidable in transverse direction with relation tothe sheds.

7. In a double shed loom having the sheds superposed with relation toeach other,

pair of shuttle boxes situated one on each side of the sheds, each ofsaid shuttle horses being provided with three superposed compartments,means for positioning the mid dle compartment of one shuttle box opposite the upper shed while simultaneously positioning the middlecompartment of the other shuttle box opposite the lower'shed and foralternating said positions, and means for simultaneously sending ashuttle from each box through the shed to the op- I posite box and araceway for each shed, one of said rac'eways being horizontally slidablein transverse directionwith relation to the sheds.

8. In a double shed loom havin the sheds superposed with relation toeach other, a pa1r of shuttle boxes situated one on each side of thesheds, each oif'said shuttle boxes being provided with three superposedcompartments, means for positioning the middle compartment of oneshuttle box opposite the upper shed- While simultaneously positioningthe middle compartment of the other shuttle box opposite the lower shedand for alternating said positions, and means for simultaneously sendinga shuttle from each box through the shed to the opposite box. saidshuttle sending means comprising l0 a picker for each box with a pair ofbutts spaced apart the same distance as said compartments, the lowerbutt registering with the lowermost compartment when said box is in itsupper position and a raceway for each shed, one of said rareways beinghorizontally slidahle in transverse direction With relation to thesheds.

In testimony whereof I affix my signature.

CLYDE A. COOK. [1,. s]

